bookstack.cn Website Information
Daily Unique Visits: 17,557
Daily Page Views: 105,342
Income Per Day: $211
Estimated Value: $151,920
bookstack.cn is registered under .CN top-level domain. Please check other sites in .CN zone.
No name server records were found.
and is probably hosted by CNNIC-ALIBABA-CN-NET-AP Alibaba (China) Technology Co., Ltd., CN. See the full list of other websites hosted by CNNIC-ALIBABA-CN-NET-AP Alibaba (China) Technology Co., Ltd., CN.
The highest website bookstack.cn position in Alexa rank database was 1787 and the lowest rank position was 984195. Current position of bookstack.cn in Alexa rank database is 81689.
Desktop speed score of bookstack.cn (74/100) is better than the results of 57.94% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of bookstack.cn (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.
Mobile speed score of bookstack.cn (54/100) is better than the results of 41.82% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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bookstack.cn Alexa Rank
The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.
bookstack.cn whois
WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.
Domain Name: bookstack.cn
ROID: 20171025s10001s96513224-cn
Domain Status: ok
Registrant: 黄崇福
Registrant Contact Email: 2350032540@qq.com
Sponsoring Registrar: 阿里云计算有限公司（万网）
Name Server: dns7.hichina.com
Name Server: dns8.hichina.com
Registration Time: 2017-10-25 13:07:36
Expiration Time: 2025-10-25 13:07:36
DNSSEC: unsigned
ROID: 20171025s10001s96513224-cn
Domain Status: ok
Registrant: 黄崇福
Registrant Contact Email: 2350032540@qq.com
Sponsoring Registrar: 阿里云计算有限公司（万网）
Name Server: dns7.hichina.com
Name Server: dns8.hichina.com
Registration Time: 2017-10-25 13:07:36
Expiration Time: 2025-10-25 13:07:36
DNSSEC: unsigned
bookstack.cn server information
Servers Location
bookstack.cn desktop page speed rank
Last tested: 2018-07-31
Desktop Speed
Medium
74/100
bookstack.cn Desktop Speed Test Quick Summary
priority - 13Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
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http://static.bookstack.cn/projects/Phalcon7-1.3.2…482b483082b4.png/cover (expiration not specified)
http://static.bookstack.cn/projects/Phalcon7-kerne…48a7b29aef38.png/cover (expiration not specified)
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http://static.bookstack.cn/projects/go-code-conven…224af5b7f57.jpeg/cover (expiration not specified)
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http://static.bookstack.cn/projects/pact-zh/upload…72696b2c198c.png/cover (expiration not specified)
http://static.bookstack.cn/projects/phpGrace/uploa…93224ae567ac.png/cover (expiration not specified)
http://static.bookstack.cn/projects/windows-apps-t…c1a8615870e8.png/cover (expiration not specified)
https://static.bookstack.cn/static/css/toast.css (expiration not specified)
https://www.bookstack.cn/static/css/main.css (expiration not specified)
https://www.bookstack.cn/static/images/book.png (expiration not specified)
https://www.bookstack.cn/static/images/logo.png (expiration not specified)
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priority - 10Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
https://apps.bdimg.com/libs/bootstrap/3.3.4/css/bootstrap.min.css
priority - 7Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://bookstack.cn/
http://www.bookstack.cn/
https://www.bookstack.cn/
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https://www.bookstack.cn/
priority - 4Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 41.1KiB (33% reduction).
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priority - 1Reduce server response time
priority - 0Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 861B (15% reduction).
Minifying https://www.bookstack.cn/static/css/main.css could save 720B (15% reduction) after compression.
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Minifying https://static.bookstack.cn/static/css/toast.css could save 141B (15% reduction) after compression.
priority - 0Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 517B (18% reduction).
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priority - 0Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 508B (11% reduction).
Minifying https://www.bookstack.cn/ could save 508B (11% reduction) after compression.
bookstack.cn Desktop Resource Breakdown
| Total Resources | 41 |
| Number of Hosts | 9 |
| Static Resources | 33 |
| JavaScript Resources | 7 |
| CSS Resources | 4 |
bookstack.cn mobile page speed rank
Last tested: 2018-07-31
Mobile Speed
Bad
54/100
bookstack.cn Mobile Speed Test Quick Summary
priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
https://apps.bdimg.com/libs/bootstrap/3.3.4/css/bootstrap.min.css
priority - 26Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://bookstack.cn/
http://www.bookstack.cn/
https://www.bookstack.cn/
http://www.bookstack.cn/
https://www.bookstack.cn/
priority - 21Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
http://static.bookstack.cn/projects/ApacheDubbo-zh…ae3b493cf7f6.png/cover (expiration not specified)
http://static.bookstack.cn/projects/ApacheDubboDev…adfa40614a12.png/cover (expiration not specified)
http://static.bookstack.cn/projects/Composer-zh/up…9957c401ea29.png/cover (expiration not specified)
http://static.bookstack.cn/projects/DoitPHP/upload…93cce2eb946e.png/cover (expiration not specified)
http://static.bookstack.cn/projects/G-framework/up…496c56097b61.png/cover (expiration not specified)
http://static.bookstack.cn/projects/OpenRASP-zh/up…0db05617b1c2.png/cover (expiration not specified)
http://static.bookstack.cn/projects/PPPHP/uploads/…944aa6ae7a8b.png/cover (expiration not specified)
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http://static.bookstack.cn/projects/Phalcon7-kerne…48a7b29aef38.png/cover (expiration not specified)
http://static.bookstack.cn/projects/ReactEnlighten…3188964225c.jpeg/cover (expiration not specified)
http://static.bookstack.cn/projects/Redis-zh/uploa…23de42173784.png/cover (expiration not specified)
http://static.bookstack.cn/projects/SpeedPHP/uploa…4a8a307af7cf.png/cover (expiration not specified)
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http://static.bookstack.cn/projects/pact-en/upload…7280bfceaec3.png/cover (expiration not specified)
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https://static.bookstack.cn/static/css/toast.css (expiration not specified)
https://www.bookstack.cn/static/css/main.css (expiration not specified)
https://www.bookstack.cn/static/images/book.png (expiration not specified)
https://www.bookstack.cn/static/images/logo.png (expiration not specified)
https://jspassport.ssl.qhimg.com/11.0.1.js?1ef5855f43ec109432d7987e14c89ff4 (10 minutes)
http://static.bookstack.cn/projects/ApacheDubboDev…adfa40614a12.png/cover (expiration not specified)
http://static.bookstack.cn/projects/Composer-zh/up…9957c401ea29.png/cover (expiration not specified)
http://static.bookstack.cn/projects/DoitPHP/upload…93cce2eb946e.png/cover (expiration not specified)
http://static.bookstack.cn/projects/G-framework/up…496c56097b61.png/cover (expiration not specified)
http://static.bookstack.cn/projects/OpenRASP-zh/up…0db05617b1c2.png/cover (expiration not specified)
http://static.bookstack.cn/projects/PPPHP/uploads/…944aa6ae7a8b.png/cover (expiration not specified)
http://static.bookstack.cn/projects/Phalcon7-1.3.2…482b483082b4.png/cover (expiration not specified)
http://static.bookstack.cn/projects/Phalcon7-kerne…48a7b29aef38.png/cover (expiration not specified)
http://static.bookstack.cn/projects/ReactEnlighten…3188964225c.jpeg/cover (expiration not specified)
http://static.bookstack.cn/projects/Redis-zh/uploa…23de42173784.png/cover (expiration not specified)
http://static.bookstack.cn/projects/SpeedPHP/uploa…4a8a307af7cf.png/cover (expiration not specified)
http://static.bookstack.cn/projects/awesome-python…9ca26508446.jpeg/cover (expiration not specified)
http://static.bookstack.cn/projects/cloud-ml/uploa…5fb88299042d.png/cover (expiration not specified)
http://static.bookstack.cn/projects/dm-algo-top10/…136f351ca48.jpeg/cover (expiration not specified)
http://static.bookstack.cn/projects/faas/uploads/2…f6340cd2176.jpeg/cover (expiration not specified)
http://static.bookstack.cn/projects/go-code-conven…224af5b7f57.jpeg/cover (expiration not specified)
http://static.bookstack.cn/projects/http-api-guide…faa5af964408.png/cover (expiration not specified)
http://static.bookstack.cn/projects/office365dev/u…fba54561d9b7.png/cover (expiration not specified)
http://static.bookstack.cn/projects/pact-en/upload…7280bfceaec3.png/cover (expiration not specified)
http://static.bookstack.cn/projects/pact-zh/upload…72696b2c198c.png/cover (expiration not specified)
http://static.bookstack.cn/projects/phpGrace/uploa…93224ae567ac.png/cover (expiration not specified)
http://static.bookstack.cn/projects/windows-apps-t…c1a8615870e8.png/cover (expiration not specified)
https://static.bookstack.cn/static/css/toast.css (expiration not specified)
https://www.bookstack.cn/static/css/main.css (expiration not specified)
https://www.bookstack.cn/static/images/book.png (expiration not specified)
https://www.bookstack.cn/static/images/logo.png (expiration not specified)
https://jspassport.ssl.qhimg.com/11.0.1.js?1ef5855f43ec109432d7987e14c89ff4 (10 minutes)
priority - 4Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 43.4KiB (32% reduction).
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Compressing https://www.bookstack.cn/static/images/book.png could save 269B (18% reduction).
priority - 1Reduce server response time
priority - 0Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 861B (15% reduction).
Minifying https://www.bookstack.cn/static/css/main.css could save 720B (15% reduction) after compression.
Minifying https://static.bookstack.cn/static/css/toast.css could save 141B (15% reduction) after compression.
Minifying https://static.bookstack.cn/static/css/toast.css could save 141B (15% reduction) after compression.
priority - 0Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 517B (18% reduction).
Minifying https://apps.bdimg.com/libs/respond.js/1.4.2/respond.js could save 517B (18% reduction) after compression.
priority - 0Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 508B (11% reduction).
Minifying https://www.bookstack.cn/ could save 508B (11% reduction) after compression.
bookstack.cn Mobile Resource Breakdown
| Total Resources | 43 |
| Number of Hosts | 9 |
| Static Resources | 35 |
| JavaScript Resources | 7 |
| CSS Resources | 4 |
bookstack.cn mobile page usability
Last tested: 2018-07-31
Mobile Usability
Good
99/100
bookstack.cn Mobile Usability Test Quick Summary
priority - 0Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target
<a href="https://www.myquant.cn">掘金量化</a> and 1 others are close to other tap targets.bookstack.cn HTML validation
Warnings
Consider avoiding viewport values that prevent users from resizing documents.
Line: 6 Column: 1 - 103
"...IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"> <titl..."
"...IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"> <titl..."
The “banner” role is unnecessary for element “header”.
Line: 19 Column: 1 - 86
"...ntainer"> <header class="navbar navbar-static-top navbar-fixed-top manual-header" role="banner"> <div ..."
"...ntainer"> <header class="navbar navbar-static-top navbar-fixed-top manual-header" role="banner"> <div ..."
The “navigation” role is unnecessary for element “nav”.
Line: 68 Column: 1 - 67
"...v> </div> <nav class="navbar-collapse hidden-xs hidden-sm" role="navigation"> <ul c..."
"...v> </div> <nav class="navbar-collapse hidden-xs hidden-sm" role="navigation"> <ul c..."
Errors
Duplicate attribute “class”.
Line: 92 Column: - 192
"...ng/cover" class="cover" alt="S..." Line: 104 Column: - 194
"...ng/cover" class="cover" alt="[..." Line: 116 Column: - 212
"...eg/cover" class="cover" alt="[..." Line: 128 Column: - 193
"...eg/cover" class="cover" alt="P..." Line: 140 Column: - 188
"...ng/cover" class="cover" alt="奇..." Line: 152 Column: - 195
"...ng/cover" class="cover" alt="T..." Line: 164 Column: - 201
"...ng/cover" class="cover" alt="S..." Line: 176 Column: - 196
"...eg/cover" class="cover" alt="H..." Line: 188 Column: - 196
"...ng/cover" class="cover" alt="P..." Line: 200 Column: - 191
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bookstack.cn Ping
Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.
bookstack.cn TRACEROUTE
Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.